Source code for naginterfaces.library.examples.matop.real_gen_matrix_fun_num_ex

#!/usr/bin/env python3
"``naginterfaces.library.matop.real_gen_matrix_fun_num`` Python Example."

# NAG Copyright 2017-2019.

# pylint: disable=invalid-name

import numpy as np

from naginterfaces.library import matop

[docs]def main(): """ Example for :func:`naginterfaces.library.matop.real_gen_matrix_fun_num`. Function of a real matrix. >>> main() naginterfaces.library.matop.real_gen_matrix_fun_num Python Example Results. Function of a real matrix. For A = [[ 3. 0. 1. 2.] [-1. 1. 3. 1.] [ 0. 2. 2. 1.] [ 2. 1. -1. 1.]] cos(2A) = [[-0.17036898 -1.15965573 -0.18778866 -0.73074175] [-0.39503854 -0.44095146 0.76061992 0.06554174] [-0.0949989 -0.07174814 0.06191979 -0.43512038] [-0.10341444 0.64237026 -1.39636277 0.10421077]] """ print( 'naginterfaces.library.matop.real_gen_matrix_fun_num ' 'Python Example Results.' ) print('Function of a real matrix.') # The input matrix: a = np.array([ [3., 0., 1., 2.], [-1., 1., 3., 1.], [0., 2., 2., 1.], [2., 1., -1., 1.], ]) print("For A =") print(a) print("cos(2A) =") print(matop.real_gen_matrix_fun_num(a, lambda z: np.cos(2.*z)).a)
if __name__ == '__main__': import doctest import sys sys.exit( doctest.testmod( None, verbose=True, report=False, optionflags=doctest.REPORT_NDIFF, ).failed )